RANKABLE EPA COUNTY AQI
Montgomery Air Quality - Texas
EPA county-level evidence, NDS comparative intelligence, and 22 connected ZIP profiles.
Median AQI
55.0
Maximum AQI
133.0
Good-air-quality days
30.71%
Average PM2.5
11.125 ug/m3
NDS Air Quality Score
5.22
U.S. County Rank
1,038 of 1,049
Percentile
0.86
Grade
F
County status
Montgomery is part of the governed NDS rankable EPA county universe.
Connected ZIP codes
Methodology
EPA AQI evidence used here is county-derived. ZIP profiles connect to this evidence through the governed NDS geography relationship.